[INFO] cloning repository https://github.com/fospring/rust-pro
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fospring/rust-pro" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffospring%2Frust-pro", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffospring%2Frust-pro'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9b7e8bd985e4974fec9a649cc10c1e0957a98261
[INFO] checking fospring/rust-pro against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffospring%2Frust-pro" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fospring/rust-pro on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fospring/rust-pro
[INFO] finished tweaking git repo https://github.com/fospring/rust-pro
[INFO] tweaked toml for git repo https://github.com/fospring/rust-pro written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/fospring/rust-pro already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e8e65a81d255df2d54d55e02b09315ff6cefbe8df27512f0fb208baa493a46aa
[INFO] running `Command { std: "docker" "start" "-a" "e8e65a81d255df2d54d55e02b09315ff6cefbe8df27512f0fb208baa493a46aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8e65a81d255df2d54d55e02b09315ff6cefbe8df27512f0fb208baa493a46aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8e65a81d255df2d54d55e02b09315ff6cefbe8df27512f0fb208baa493a46aa", kill_on_drop: false }`
[INFO] [stdout] e8e65a81d255df2d54d55e02b09315ff6cefbe8df27512f0fb208baa493a46aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31aa6fe34a5dc304f65d0f74cac5cfe87b0500a5e8d72ffe4c78bacdfb6285d2
[INFO] running `Command { std: "docker" "start" "-a" "31aa6fe34a5dc304f65d0f74cac5cfe87b0500a5e8d72ffe4c78bacdfb6285d2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking futures-sink v0.3.9
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking pin-project-lite v0.2.2
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking futures-core v0.3.9
[INFO] [stderr]     Checking futures-io v0.3.9
[INFO] [stderr]     Checking bytes v1.0.0
[INFO] [stderr]     Checking futures-task v0.3.9
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]    Compiling tokio v1.0.1
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking futures-channel v0.3.9
[INFO] [stderr]     Checking parking_lot_core v0.8.2
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.7.7
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling futures-macro v0.3.9
[INFO] [stderr]    Compiling tokio-macros v1.0.0
[INFO] [stderr]     Checking futures-util v0.3.9
[INFO] [stderr]     Checking futures-executor v0.3.9
[INFO] [stderr]     Checking futures v0.3.9
[INFO] [stderr]     Checking rust-pro v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `thread`
[INFO] [stdout]   --> src/arc_mvp.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     thread,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FutureExt`, `self`
[INFO] [stdout]  --> src/future_poll.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use futures::future::{self, Future, FutureExt};
[INFO] [stdout]   |                       ^^^^          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration`, `Instant`
[INFO] [stdout]   --> src/future_poll.rs:52:17
[INFO] [stdout]    |
[INFO] [stdout] 52 | use std::time::{Duration, Instant};
[INFO] [stdout]    |                 ^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `thread`, `time`
[INFO] [stdout]   --> src/future_poll.rs:53:11
[INFO] [stdout]    |
[INFO] [stdout] 53 | use std::{thread, time};
[INFO] [stdout]    |           ^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration`, `Instant`
[INFO] [stdout]  --> src/lib.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::time::{Duration, Instant};
[INFO] [stdout]   |                 ^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `thread`, `time`
[INFO] [stdout]  --> src/lib.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::{thread, time};
[INFO] [stdout]   |           ^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Instant`
[INFO] [stdout]   --> src/future_poll.rs:52:27
[INFO] [stdout]    |
[INFO] [stdout] 52 | use std::time::{Duration, Instant};
[INFO] [stdout]    |                           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration`, `Instant`
[INFO] [stdout]  --> src/lib.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::time::{Duration, Instant};
[INFO] [stdout]   |                 ^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `thread`, `time`
[INFO] [stdout]  --> src/lib.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::{thread, time};
[INFO] [stdout]   |           ^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/lib.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/arc_mvp.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn new(data: T) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_warp_future`
[INFO] [stdout]   --> src/future_poll.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn new_warp_future(future: F) -> impl Future<Output = ()> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/pin_data.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn new(txt: &str) -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `init`
[INFO] [stdout]   --> src/pin_data.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn init(&mut self) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `a`
[INFO] [stdout]   --> src/pin_data.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn a(&self) -> &str {
[INFO] [stdout]    |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `b`
[INFO] [stdout]   --> src/pin_data.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn b(&self) -> &String {
[INFO] [stdout]    |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_traitobj`
[INFO] [stdout]   --> src/trait_obj.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn print_traitobj(p: &dyn Bird) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]  --> src/trait_obj.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[feature(dyn_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]`
[INFO] [stdout]  --> src/trait_obj.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[feature(dyn_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]    --> src/future_poll.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let now = time::Instant::now();
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]  --> src/pointer_owner_ship.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 |         let a = 2;
[INFO] [stdout]   |             ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/pointer_owner_ship.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let a = 2;
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num`
[INFO] [stdout]   --> src/lib.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let num = u32::from_ne_bytes(raw_bytes);
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]  --> src/trait_obj.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[feature(dyn_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]`
[INFO] [stdout]  --> src/trait_obj.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[feature(dyn_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.72s
[INFO] running `Command { std: "docker" "inspect" "31aa6fe34a5dc304f65d0f74cac5cfe87b0500a5e8d72ffe4c78bacdfb6285d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31aa6fe34a5dc304f65d0f74cac5cfe87b0500a5e8d72ffe4c78bacdfb6285d2", kill_on_drop: false }`
[INFO] [stdout] 31aa6fe34a5dc304f65d0f74cac5cfe87b0500a5e8d72ffe4c78bacdfb6285d2